But that's the entire point. The windows UI is still easy, especially for people that have always used windows. There have only been gradual changes. :)
And to slap in an anecdote, I am quite proficient with everything IT related. I try installing Linux once a year on average, in general I try to recommended "noob distros" . I always go back to windows after a few weeks at best. You really have to make an big effort to fully go to Linux. I end up spending more time dealing with the OS itself than doing the stuff I want.
I can absolutely see the appeal of it, but I don't enjoy it :)
As an end user, I don't care about proprietary garbage, I want my mouse to work :). I understand the aversion to proprietary stuff etc. But non techie end users don't give a flying fuck.
Also, everyone has had an MS account since the msn messenger and Hotmail heydays. That is an absolute non issue for 99% of the people tbh.